Table 3.

Multivariate analyses of prognostic factors for disease-free survival and overall survival of patients with stage III colon cancer

Variable	Disease-free survival		Variable	Overall survival
	HR (95% CI)	P value		HR (95% CI)	P value
Sex (male vs. female)	2.061 (1.144–3.713)	0.016	Adjuvant chemotherapy (6–8 cycles vs. < 6 cycles)	0.325 (0.156–0.678)	0.003
PNI (≤ 49.22 vs. > 49.22)	2.001 (1.157–3.462)	0.013	Tumor location (right-sided colon vs. left-sided colon)	1.909 (0.916–3.977)	0.084
			PNI (≤ 49.22 vs. > 49.22)	2.082 (0.978–4.429)	0.057

HR hazard ratio, CI confidence interval, PNI prognostic nutritional index